Creating a device in Eagle

Fri Jun 10, 2005 7:34 am   

I did my first schematic in Eagle last night.
I wanted to show a piezo device (the CUI Inc CEP-1136,
see http://www.cui.com/pdffiles/buzz_cep-1130.pdf),
so I thought I'd build a device, symbol and package for it.
Not unlike the F/SU in buzzer.lbr.

I have it most of the way there, but I can't work out how
to rename the pins on the symbol or the package. I seem to
have two sets of pin names?! Possibly because I placed the
pins the wrong way around at first and had to pick them up
and rotate. There's also some green text I didn't ask for
on the three pins, saying "I/O 0". Why, and how can I change
it? I'd like to renumber pins also.

One other thing, this isn't really a footprint, as the
package has three lead wires, it doesn't PC-mount. So I
dropped three "pads" on the package where the wires come
out. I guess that's ok, except the DRC will want to know
why I haven't placed it - won't it? I also want to rename
these pins.

I've dropped the LBR in a.b.s.e, in case it's of use to
anyone.

Clifford Heath.

Fri Jun 10, 2005 5:34 pm   

On Fri, 10 Jun 2005 05:34:10 -0300, Clifford Heath <no_at_spam.please.net>
wrote:


manual first, tutorials second, you did read them didn't you? you can ask
in news.cadsoft.de, which has english groups, i'm there. you can also say
'gee, i read them things and i still can't get it' then i'll give you the
answers.

--
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Fri Jun 10, 2005 7:29 pm   

On Fri, 10 Jun 2005 18:34:10 +1000, Clifford Heath
<no_at_spam.please.net> wrote:


I don't use Eagle, so I can't help with your first questions.


If this thing is to connect to the PC board, you need some sort of
footprint or group of pads for it to connect to.

For off-board components I usually use a row of pads for the footprint
- they don't have to match the arrangement of terminals on the device
(although sometimes they do - my footprint for a DPDT switch is a 3 x
2 array of pads, arranged in the same way as the switch terminals).

--
Peter Bennett VE7CEI
email: peterbb4 (at) interchange.ubc.ca
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Fri Jun 10, 2005 7:42 pm   

On Fri, 10 Jun 2005 17:29:46 -0300, Peter Bennett
<peterbb_at_nowhere.invalid> wrote:


i do similar, but for rotary switches i leave the pads within the device
outline, then i route near the device, then i slap on a pad which i then
rename to the net, route to, works fine.

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Sat Jun 11, 2005 6:10 am   

Clifford Heath wrote:

Use the 'namer thingy' tool to rename pins. It looks like a little
resistor with R2 and 10k above and below it.

You can change the visibility of the pins by editing the symbol. Use the
little 'wrench thingy', select 'visibility', and then 'off'.


To change the names of pins, edit the symbol, and then you can just
click on them with the 'namer thingy' selected, and a dialog pops up.
The namer thingy has a button that looks like a resistor with R2 and 10k
on it.

Eagle has a bizarre interface. Learning it is like learning to type on a
dvorak keyboard.

---
Regards,
Bob Monsen

Sat Jun 11, 2005 10:09 am   

from Kevin Bolding, Instructor, Seattle Pacific University
http://myhome.spu.edu/bolding/EE4211/EagleTutorial4.htm

Sun Jun 12, 2005 1:31 am   

Thanks all. I was confused by the device pins and pads both having
names. If it's any use to anyone, I posted the updated library to
a.b.s.e.

Clifford Heath.